GitLab won’t bundle it in its community edition or its enterprise edition yet, but it will open-source the Gitter code for others to build on, GitLab cofounder and CEO Sid Sijbrandij told VentureBeat in an interview. What’s happening now, though, is that as part of GitLab, Gitter is launching a new feature called Topics, where people will be able to ask and answer questions — sort of like Stack Overflow.